The Effect of Diffuser Angle on the Discharge Coefficient of a Miniature Critical Nozzle
文献类型：期刊论文
| 作者 | Heuy Dong Kiml*; Toshiaki Setoguchi2; Jae Hyung Kim1 |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2010 |
| 卷号 | 19期号:3页码:222,227 |
| 关键词 | Compressible Flow Critical Nozzle Compressible Flow Discharge Coefficient Diffuser Configuration Reynolds Number |
| 英文摘要 | Many researches on critical nozzles have been performed to accurately measure the mass flow rate of gas flow, and to standardize the performance as a flow meter. Recently, much interest is being paid on the measurement of very small mass flow rate in industry fields such as MEMS applications. However, the design and performance data of the critical nozzles obtained so far have been applied mainly to the critical nozzles with comparatively large diameters, and the works available on miniature critical nozzles are lacking. In the present study, a computa tional fluid dynamics method has been applied to investigate the influence of the diffuser angle on discharge coefficient of the miniature critical nozzles. In computations, the throat diameter of critical nozzle is varied from 0.2 mm to 5.0 mm and the diffuser angle is changed from 2 deg to 8 deg. The computational results are validated with some experimental data available. The results show that the present computational results predict appropriately the discharge coefficient of the gas flows through miniature critical nozzles. It is known that the discharge coeffi cient is considerably influenced by the diffuser angle, as the throat diameter of nozzle becomes small below a certain value. This implies that the miniature critical nozzles should be carefully designed. |
| 公开日期 | 2013-01-06 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/51605]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | Heuy Dong Kiml*,Toshiaki Setoguchi2,Jae Hyung Kim1. The Effect of Diffuser Angle on the Discharge Coefficient of a Miniature Critical Nozzle[J]. JOURNAL OF THERMAL SCIENCE,2010,19(3):222,227. |
| APA | Heuy Dong Kiml*,Toshiaki Setoguchi2,&Jae Hyung Kim1.(2010).The Effect of Diffuser Angle on the Discharge Coefficient of a Miniature Critical Nozzle.JOURNAL OF THERMAL SCIENCE,19(3),222,227. |
| MLA | Heuy Dong Kiml*,et al."The Effect of Diffuser Angle on the Discharge Coefficient of a Miniature Critical Nozzle".JOURNAL OF THERMAL SCIENCE 19.3(2010):222,227. |
入库方式： OAI收割
来源：工程热物理研究所
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